The energy relations involved in the room-temperature tensile deformation of single crystals of silver have been measured by single-step calorimetry. The data have been discussed in terms of theories of work hardening. The stored energy values were found to be linearly related to the square of the
The energy stored in copper single crystals
โ Scribed by A Wolfenden
- Publisher
- Elsevier Science
- Year
- 1967
- Weight
- 909 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0001-6160
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โฆ Synopsis
A single-step calorimeter has been used to measure the energy relations involved in the room temparature tensile deformation of single crystals of copper. The dam have been discussed in terms of theories of work hardening. The values of the stored energy were linearly related to the square of the shear stress, the constants of proportionality being orientation dependent. sought in terms of the dislocation structure after deformation. An explanation of these effects has been ENERGIE STOCKEE DANS DES MONOCRISTAUX DE CUIVRF On utilise un ealorim&re B un &age pour mesurer les &changes d'energie impliques dans la deformation de traction de monooristaux de cuivre & temperature ambiante. des theories de la consolidation. On discute les donnees dans l'optique L'energie stockee varie lineairement avec le carre de la cission, le coefficient de proportionnslite Btant fonction de l'orientation. On tr cherche une explication de ces effets du c&e de la structure de dislocations aprirs deform&ion. DIE GESPEICHERTE ENERGIE IN KUPFEREINKRISTALLEN Ein einstufiges Kalorimeter wurde zur Messung der Energiebillanz bei der Raumtemperatur-zugverformung von Kupfereinkristallen verwendet. Die Ergebnisse werden im Rahmen von Verfestigungstheorien disk&&. Die We&e der gcspeicherten Energie waren linear mit dem Quadrat der Zugspannung verbunden, wobei die Proportion~lit~tskonst~t~n orientierungsabh~ngig waren. Fine Deutung dieser Effekte wurde an Hand der Versetzungsst,ruktur nach Verformung gesucht.
๐ SIMILAR VOLUMES
The results of the calorimetric determination of the stored energy for polycrystalline copper deformed in tension at room temperature are reported. They are found to be in good agreement with those of Williams obtained for similar specimens and test conditions. Differences between the new stored ene
The rate of diffusion of antimony in copper single crystals has been measured over the temperature range 600'1OOO'C by means of a sectioning technique employing the Sblz4 radio-isotope as tracer. The diffusion activation eneigy and frequency factor were found to be 42000 & 700 cal mole-l and 0.34 5